[QUOTE][Single piston mechanicals is what got that little girl killed on the Rad bike from a few days ago. Single piston OEM mechanicals is what nearly got me killed in 2016 trying (& failing) to stop for a traffic signal on a simple speed limit descent./QUOTE]
I went through several sets of mechanical disk brakes before purchasing the Paul Klampers. The incident with the two young girls is and probably will stay a mystery. There are reports of the Rad Runner being hard to stop by other people. I wonder if the brakes were in proper working order. Stretched cables, worn pads. Did the girl have enough strength to apply the brakes properly.